Electrical connection clamp



w. WENDERHOLD.

ELECTRICAL CONNECTION CLAMP.

APPLICATION FILED DEC. I, 1917.

Patented. Nov. 28, 1922.

, 5] mum wow iii Patented Nov. 28, 1922.

- UNITED STATES PATENT; QFFICE.

\VILLIAM WENDERHOLD, OF NEW YORK, N. Y., ASSIGNOR TO CRU PATENTS CORPORA- TION, A CORPORATION OF NEW YORK. I

ELECTRICAL CONNECTION CLAMP.-

Application filed December 1, 1917'. Serial No. 205,000.

To all whom it may concern Be it known that I, WILLIAM WENDER- HOLD, a citizen of the United States, residing at New York city, in the county and State .5 of New York, have invented certain new and useful Improvements in Electrical Connection Clamps, of which the following is a clear, full, and exact description.

The object of my invention is to provide a connection clamp for carbon holders and electric terminals that will maintain positive electrical contact, especially where such connections are subject to heat.

Referring to my drawings, Fig. 1 is a top view of a carbon holder showing the improved electrical connection. Fig. 2 is a side view thereof, partly in cross-section. As shown in Fig. 1, the bracket 1 is carbon holder such as usually used in arclamps, having an extension 1 for wire connection. The carbon 2 is held in bracket 1.

by means of a screw 3 which presses the thermostatic members or blocks 1 and 5 against the carbon 2. The action of thermostatic metal is well known. Blocks 4: and 5 when heated have a tendency of curvmg ing more pressure upon the carbon 2, and

also taking up any expansion that might as shown in the drawing, thereby bring I maintained even under extreme heat condi tions.

The bracket 1 as illustrated is a carbon holder as employed in are lamps. My invention can be employed wherever it is found diflicult to maintain good electrical connection on account of heat.

VVhile I have shown and described a specific structure embodying the principles of my invention, I wish it to be understood that my invention in its broad scope as defined by the claims is not to be limited or restricted thereto, as many changes in details of construction will readily appear to those skilled in the art without departing from the contemplated spirit and scope of my invention.

What I claim as my invention is:

1. A clamping means for electric connections, comprising a holding bracket for engaging an electric conductor. adjusting means on said bracket and a pair of curved cooperating thermostatic members movably mounted in said bracket between said con-- ductor and said adjusting means for increasing the tensioning action on the conductor with increase of temperature.

2. In a thermostatic holder for clamping an electric conductor, a main bracket for holding said conductor, an adjusting screw in said bracket and a pair of concave thermostatic members in said holder between said conductor and said adjusting screw. whereby when temperature varies the concavity of said thermostatic members varies to thereby vary the clamping action on said conductor.

Signed at the city of New York. New York, this 24th day or" November one thousand nine hundred and seventeen.

WILLIAM WENDERHOLD. 

